We don’t need more pronouns. We need less of them.
In my native language there is no even he/she pronouns. The word is “hän” and it’s gender neutral. You can be male, female, FTM, MTF, non-binary or what ever and you’re still called “hän”. You can identify as anything you like and “hän” already includes you.
Wouldn’t be surprised if the (mostly) political right that seems all these new pronouns as stupid would also ironically be against giving up on their own gender specific pronoun for a gender neutral one.